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dc.contributor.authorVazquez, Miguel Angel
dc.contributor.authorBlanco, Luis
dc.contributor.authorPérez Neira, Ana Isabel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationVazquez, M., Blanco, L., Perez, A. Multiuser downlink hybrid analog-digital beamforming with individual SINR constraints. A: International ITG Workshop on Smart Antennas. "WSA 2017: 21th International ITG Workshop on Smart Antennas: March 15-17, 2017; Berlin, Germany". Berlin: VDE-Verlag, 2011, p. 84-89.
dc.description.abstractThis paper deals with the problem of multiuser transmit hybrid analog-digital beamforming. Precisely, we tackle the problem of transmit power minimization under minimum signal-to-noise-plus-interference ratio (SINR) constraints. While the all-digital beamforming solution has been extensively studied in the recent years, little is known about the hybrid analog-digital optimization. This latter design is known to be a non-convex NP-hard problem as the analog part entails the optimization of a quadratically constraint quadratic program with several equality constraints. In order to solve this problem, we propose an alternating optimization with a successive convex approximation procedure. The conceived scheme is able to consider an arbitrary sub-array connectivity matrix (i.e. localized, interleaved, fully-connected,...). Through numerical simulations it is observed that the proposed framework yields to an efficient solution in few iterations providing a substantial gain compared to current heuristic approaches.
dc.format.extent6 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subject.lcshMicrowave antennas
dc.subject.lcshWireless communication systems
dc.titleMultiuser downlink hybrid analog-digital beamforming with individual SINR constraints
dc.typeConference report
dc.subject.lemacAntenes de microones
dc.subject.lemacComunicació sense fil, Sistemes de
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/645047/EU/Shared Access Terrestrial-Satellite Backhaul Network enabled by Smart Antennas/SANSA
local.citation.authorVazquez, M.; Blanco, L.; Perez, A.
local.citation.contributorInternational ITG Workshop on Smart Antennas
local.citation.publicationNameWSA 2017: 21th International ITG Workshop on Smart Antennas: March 15-17, 2017; Berlin, Germany

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